Can astronauts return to the spacecraft when they accidentally fall into space? How important is a spacesuit?

We live in a material world, and all kinds of materials have their own conditions for existence. Life is essentially a collection of matter, and there will naturally be conditions for existence. Once these conditions are lost, life will lose the possibility of normal operation and eventually enter a state of "death".

Since its birth, human beings have been seeking the mystery of life and death, hoping that one day people can get rid of the cycle of life and death. But now we know very well that people are still animals bound by the laws of nature, and we are still troubled by birth, illness and death. Humans can only try to avoid our death because of some "accidents", such as diseases and accidents. How to make people live a safer and longer life is a subject we have been studying.

To develop human society, it is necessary for someone to explore all kinds of new things. Paradoxically, a lot of work to explore the unknown is full of dangers, which seems to be just the opposite of our purpose. Although we should praise these people for their courage and adventurous spirit, we should also be responsible for their safety and develop more tools to protect them.

Among many explorations, exploring space may be the most unknown and dangerous one at present, and human technology is relatively immature. But we can be sure that the future of mankind will be in other parts of the universe, because the earth will eventually limit our development and all its resources are very limited, so we must continue to March into space. Therefore, space exploration is a risky and rewarding action.

When we observe space with naked eyes on the earth, we can see countless shining stars shining and decorating the night sky with brilliance. But in fact, the universe is much more empty than we thought. The planets we can see may be thousands of light years apart, and most of the space is "blank".

However, we know that the space that is considered as a gap on the earth is also full of air. Although there is no air in space, space is by no means a "vacuum" environment with nothing. There are also many substances in it, but we can't see them with our naked eyes. Space is full of all kinds of moving particles. In recent years, some researchers believe that there are a lot of "dark matter" in these places.

Since the last century, human beings have been able to really explore space. We not only successfully launched satellites and space stations into space, but also sent ourselves, that is, astronauts, into space. Although most humans can only live on the earth now, at least we can see what it is like outside the atmosphere through their eyes.

These astronauts are one in a million top talents. Together with the ground commanders, they have completed their tasks again and again, making indelible contributions to the aerospace industry of mankind. So, what did they encounter in the universe? Will it be dangerous? Today we will talk about some things that astronauts may encounter in the process of "leaving the cabin".

Man is a fragile creature, and we can only survive in a suitable environment. If we want to get out of the "comfort zone" of the surface, then human beings need to use various tools to protect themselves. For example, pilots flying at high altitude need to be in the pressurized cockpit and also need a solid fuselage and glass to protect themselves; People also need diving suits and submarines when diving, because we can't breathe in the water and we don't have the ability to withstand huge water pressure.

This is still within the scope of the earth. When we leave the earth and go into unknown space, the "survival pressure" of human beings will only become greater. Therefore, astronauts also need adequate protection when performing various tasks.

In all space missions, the extravehicular mission is one of the most dangerous tasks, because at this time, astronauts must leave the aircraft and go to space alone, and the only thing they can really rely on is their spacesuits. Why do astronauts have to leave the cabin?

On the one hand, it is difficult to maintain machinery such as space station by machines alone, which requires manual operation and maintenance. On the other hand, if we want to carry out complex activities on other planets in the future, we must take the step of taking a space capsule. Now a series of out-of-town tasks are a preview of future tasks. If you can't do it now, it will be even more impossible in the future.

Since the extravehicular task is necessary but also dangerous, are there any accidents in various extravehicular tasks? Actually, there is. In the cold war of the last century, the United States and the Soviet Union competed in all aspects, including the most advanced aerospace industry at that time. The Soviet Union took the lead in sending the first man-made satellite and the first astronaut into space, while the United States followed closely.

In order not to let Americans surpass themselves, the Soviets can only keep exploring, including letting astronauts walk in space. 1965, the Soviet "Ascension II" spacecraft was successfully launched, and astronaut leonov was selected for the extravehicular mission.

Leonov became the first person in the world to leave the spacecraft and go into space. However, when he wanted to return to the spaceship, he found that his spacesuit was too bloated to squeeze into the spaceship. In the feeling be nasty under, leonov can only let go of some inflatable spacesuit, barely squeezed into the spacecraft.

Although it was a close call, people couldn't help worrying: What if the astronauts didn't get into the spaceship, but fell directly into space? First of all, we must understand that people will not "fall" in space, but will drift in boundless space. The probability of our returning to the ship by ourselves is zero.

In order to prevent their companions from dying in the wandering, other astronauts must take immediate action: first, throw out the rope on the spacecraft and let the astronauts who leave the spacecraft catch it. If it is too far away, then the astronauts in the spaceship need to go out in person, tie a safety rope on themselves and rescue their companions.

Of course, both of them are at risk of death, so astronauts will not make such a choice unless they have to. But in any case, it is not impossible for astronauts to leave the spacecraft and return to the spacecraft in space, provided that the ground command center and the companions on the spacecraft make the best judgment in time according to the situation at that time.

Although we say that an astronaut may be saved if he falls into space, the premise of all this is that the astronaut has put on his spacesuit and the spacesuit is intact. In space, a spacesuit is the life of an astronaut. Without a spacesuit, humans can't survive in space for more than fifteen seconds.

The main reason is that space is a completely air-free environment, and we can't live long without breathing. Some people may ask, can't we hold our breath? But unfortunately, in that completely air-free environment, if air accumulates in the lungs, it will only make our lungs swell and rupture, and eventually take our lives.

It was also the Soviet Union that launched Soyuz 1 1 spacecraft in1year. On the way back, three astronauts died of suffocation because they didn't have an extravehicular spacesuit and the exhaust valve under the cockpit accidentally opened.

This tragedy has sounded the alarm for the whole world, so all astronauts need to wear spacesuits when they return later. Spacesuit can not only provide astronauts with oxygen, but also adjust the temperature, pressurization and water supply to prevent all kinds of cosmic harmful rays from attacking in outer space. You can imagine how important it is.

We can see astronauts moving freely in space and feel that their spacesuits are just a little bloated. In fact, it has a very amazing weight, but it can't be felt in the weightless environment of space. Generally speaking, the weight of extravehicular spacesuit can reach several hundred kilograms, including oxygen cylinders, purifiers, various electronic equipment, physical protection and so on.

Despite the complex design and diverse functions, the current spacesuit can be put on and taken off in about five minutes, which is not only due to the day-to-day training of astronauts, but also the continuous improvement of spacesuits by researchers.

China's manned space flight developed late, and the first manned spacecraft was officially launched at the beginning of this century. But our country's space industry has made amazing progress, and now it has built its own space station. For the first time since Shenzhou VII, we let astronauts work outside the cabin. Up to now, space station astronauts frequently leave the cabin, and our spacesuits are constantly improving.

Today's spacesuit costs tens of millions of RMB, but its function is fully worthy of this expensive price, which can ensure that Chinese astronauts can safely complete various tasks in space.

With the development of human science and technology, we will certainly continue to improve our spacesuit in the future. After all, if human beings want to emigrate from space in the future, it is impossible to wear such a bloated spacesuit for construction.

In the future, our spacesuit should be more versatile and lightweight, and it should be able to adapt to the different physical qualities of more people, because in the future, aerospace should not be the career of the best people, but the career of all mankind. If we want to create a better future, we must make constant efforts in this respect. At the same time, we also believe that our scientists can make more contributions to human exploration of the universe in the future.

With the development of society, China has returned to the ranks of powerful countries from a weak country that is poor and weak. In all aspects, we all hope to assume more responsibilities as big countries, and the leading era of science and technology is naturally one of them.

Now China has become the third country to develop its own space station. I believe that China in the future will not only be satisfied with countless firsts, but also create many firsts in the new era, so that the five-star red flag will fly more on other planets and become a proof of the continuous progress of human scientific and technological civilization.